Thanks. Having driven around on them a bit I'm really happy with them. They seem to feel better on the road than the stock tires. Have some friends that plow who swear by them, so the snow/ice traction should be good. The fact that they look 100% more badass than the stock tires is a nifty bonus.

I'm hoping the Provent keeps the oil out of that mess. Dry soot blows through, it's when it mixes with the oil you get that disaster. Can't honestly understand why the factory doesn't install these things as factory equipment.

Scored a replacement intake tube that keeps the stock airbox but ditches the big muffler attached to it so there's more of that sweet, sweet diesel growl:

Opened up the Provent to see what's happening inside after draining out about 4oz of condensation and a couple of tablespoons of oil:

While I was at it, I checked the turbo inlet to see how well the provent is keeping the oil out of everything, and it's bone dry:

Truck's running like a champ. Starts right up, even in this bitter cold. No plug-in necessary. About all I've been doing is adding Schaeffer's SoyShield to the fuel when I fill it up to prevent waxing/gelling and for some additional lubricity/cetane.

First thing that can be done to add some sound: behind the fender on the passenger side is an intake 'horn'. You can get at it by pulling a few screws out of the wheel well liner. It's in place with those ribbed push pins, so just pull it off. That'll add some rumble. If you want more than that, then pick up the Profab intake tube and make sure you click the 'PCV fitting' option. On top of the sound, throttle response seems a bit quicker to my SOTP dyno.

Edit: You can also pull off the plastic engine cover and remove all that foam sound deadener on top of the motor. That helps a bunch, too. I put the cover back on after removing the sound deadener.

I highly recommend getting an oil separator for the crankcase vent. Keep all that oily crud out of the intake tract!